nfsd: defer setting NFSD4_CALLBACK_RUNNING in deleg_reaper

deleg_reaper() sets NFSD4_CALLBACK_RUNNING before checking the
5-second rate limit and cl_cb_state gates.  When either gate fires
the loop continues without queuing callback work, so the bit's only
clear site in nfsd41_destroy_cb() is never reached and RECALL_ANY
dispatch is permanently disabled for the affected client.

Move the test_and_set_bit() below both non-queueing gates so the
bit is taken only when nfsd4_run_cb() will be called.

Fixes: 424dd3df1f99 ("nfsd: eliminate cl_ra_cblist and NFSD4_CLIENT_CB_RECALL_ANY")
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260526-cb_recall_any_callback_running_stuck-v1-1-310011a028f3@kernel.org
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

0 files changed, 0 insertions, 0 deletions